| /* |
| * Copyright 2007, 2008 Niclas Hedhman. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or |
| * implied. |
| * |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.zest.runtime.injection.provider; |
| |
| import java.lang.reflect.Type; |
| import org.apache.zest.api.Qi4j; |
| import org.apache.zest.api.composite.TransientBuilderFactory; |
| import org.apache.zest.api.object.ObjectFactory; |
| import org.apache.zest.api.query.QueryBuilderFactory; |
| import org.apache.zest.api.service.ServiceFinder; |
| import org.apache.zest.api.structure.Application; |
| import org.apache.zest.api.structure.Layer; |
| import org.apache.zest.api.structure.Module; |
| import org.apache.zest.api.unitofwork.UnitOfWorkFactory; |
| import org.apache.zest.api.value.ValueBuilderFactory; |
| import org.apache.zest.bootstrap.InvalidInjectionException; |
| import org.apache.zest.runtime.injection.DependencyModel; |
| import org.apache.zest.runtime.injection.InjectionContext; |
| import org.apache.zest.runtime.injection.InjectionProvider; |
| import org.apache.zest.runtime.injection.InjectionProviderFactory; |
| import org.apache.zest.runtime.model.Resolution; |
| import org.apache.zest.runtime.structure.ModuleInstance; |
| import org.apache.zest.spi.module.ModuleSpi; |
| |
| public final class StructureInjectionProviderFactory |
| implements InjectionProviderFactory |
| { |
| @Override |
| public InjectionProvider newInjectionProvider( Resolution resolution, DependencyModel dependencyModel ) |
| throws InvalidInjectionException |
| { |
| return new StructureInjectionProvider( dependencyModel ); |
| } |
| |
| private static class StructureInjectionProvider |
| implements InjectionProvider |
| { |
| private final DependencyModel dependencyModel; |
| |
| private StructureInjectionProvider( DependencyModel dependencyModel ) |
| { |
| this.dependencyModel = dependencyModel; |
| } |
| |
| @Override |
| public Object provideInjection( InjectionContext context ) |
| throws InjectionProviderException |
| { |
| Type type1 = dependencyModel.injectionType(); |
| if( !( type1 instanceof Class ) ) |
| { |
| throw new InjectionProviderException( "Type [" + type1 + "] can not be injected from the @Structure injection scope: " + context ); |
| } |
| Class clazz = (Class) type1; |
| if( clazz.equals( TransientBuilderFactory.class ) ) |
| { |
| return context.module(); |
| } |
| else if( clazz.equals( ObjectFactory.class ) ) |
| { |
| return context.module(); |
| } |
| else if( clazz.equals( ValueBuilderFactory.class ) ) |
| { |
| return context.module(); |
| } |
| else if( clazz.equals( UnitOfWorkFactory.class ) ) |
| { |
| return context.module(); |
| } |
| else if( clazz.equals( QueryBuilderFactory.class ) ) |
| { |
| return context.module(); |
| } |
| else if( clazz.equals( ServiceFinder.class ) ) |
| { |
| return context.module(); |
| } |
| else if( Module.class.isAssignableFrom( clazz ) ) |
| { |
| return context.module(); |
| } |
| else if( ModuleSpi.class.isAssignableFrom( clazz ) ) |
| { |
| return context.module(); |
| } |
| else if( Layer.class.isAssignableFrom( clazz ) ) |
| { |
| return (( ModuleInstance) context.module()).layerInstance(); |
| } |
| else if( Application.class.isAssignableFrom( clazz ) ) |
| { |
| return (( ModuleInstance) context.module()).layerInstance().applicationInstance(); |
| } |
| else if( Qi4j.class.isAssignableFrom( clazz ) ) |
| { |
| return (( ModuleInstance) context.module()).layerInstance().applicationInstance().runtime(); |
| } |
| |
| return null; |
| } |
| } |
| } |